Mm. Walka et al., Thrombopoietin concentration in umbilical cord blood of healthy term newborns is higher than in adult controls, BIOL NEONAT, 75(1), 1999, pp. 54-58
Thrombopoietin (TPO) concentrations were determined in umbilical cord plasm
a of 121 healthy term newborns, The lower detection limit of the enzyme imm
unoassay employed was 32.5 pg/ml. Median cord plasma TPO concentration was
78 (interquartile range 55-107) pg/ml, 95th percentile was 255 pg/ml, In on
ly 8% (10/121), TPO was below the detection limit compared to 81% of health
y adults (25/31). In cord blood and adult controls, there were no significa
nt correlations of TPO with platelet count or mass.